The asin() is an inbuilt function in Ruby returns the arc sine of a number means give a sin value to this function it will return the angle in radian corresponding to that value. The value passed is in between -1 and +1.
Syntax: Math.asin(value)
Parameters: The function accepts one mandatory parameter value whose corresponding angle we have to find.
Return Value: It returns the angle in radians which in range -pi/2 to +pi/2.
Example 1:
Ruby
#Ruby program for asin() function #Assigning values val1 = 1 val2 = 0 . 5 val3 = - 1 val4 = - 0 . 9
#Prints the asin() value puts Math.asin(val1)
puts Math.asin(val2)
puts Math.asin(val3)
puts Math.asin(val4)
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Output:
1.5707963267948966 0.5235987755982989 -1.5707963267948966 -1.1197695149986342
Example 2:
Ruby
#Ruby program for asin() function #Assigning values val1 = 0 . 87 val2 = 0 . 67 val3 = - 0 . 679 val4 = - 0 . 564
#Prints the asin() value puts Math.asin(val1)
puts Math.asin(val2)
puts Math.asin(val3)
puts Math.asin(val4)
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Output:
1.0552023205488061 0.7342087874533589 -0.746399633896421 -0.59922176813665
Reference: https://devdocs.io/ruby~2.5/math#method-c-asin